A computational study is presented of the heat transfer performance of a micro-scale, axisymmetric, confined jet impinging on a flat surface with an embedded uniform heat flux disk. The jet flow occurs at large, subsonic Mach numbers (0.2 to 0.8) and low Reynolds numbers (419 to 1782) at two impingement distances. The flow is characterized by a Knudsen number of 0.01, based on the viscous boundary layer thickness, which is large enough to warrant consideration of slip-flow boundary conditions along the impingement surface. The effects of Mach number, compressibility, and slip-flow on heat transfer are presented. The local Nusselt number distributions are shown along with the velocity, pressure, density and temperature fields near the impingement surface. Results show that the wall temperature decreases with increasing Mach number, exhibiting a minimum local value at for the highest The slip velocity also increases with showing peak values near for all The resulting Nusselt number increases with increasing and local maxima are observed near rather than at the centerline. In general, compressibility improves heat transfer due to increased fluid density near the impinging surface. The inclusion of slip-velocity and the accompanying wall temperature jump increases the predicted rate of heat transfer by as much as 8–10% for between 0.4 and 0.8.
Skip Nav Destination
e-mail: pence@engr.orst.edu
e-mail: liburdy@engr.orst.edu
Article navigation
Technical Papers
Simulation of Compressible Micro-Scale Jet Impingement Heat Transfer
Deborah V. Pence, Mem. ASME,
e-mail: pence@engr.orst.edu
Deborah V. Pence, Mem. ASME
Department of Mechanical Engineering, Oregon State University, Corvallis, OR 97331
Search for other works by this author on:
Paul A. Boeschoten, Graduate Research Assistant,
Paul A. Boeschoten, Graduate Research Assistant
Department of Mechanical Engineering, Oregon State University, Corvallis, OR 97331
Search for other works by this author on:
James A. Liburdy, Mem. ASME
e-mail: liburdy@engr.orst.edu
James A. Liburdy, Mem. ASME
Department of Mechanical Engineering, Oregon State University, Corvallis, OR 97331
Search for other works by this author on:
Deborah V. Pence, Mem. ASME
Department of Mechanical Engineering, Oregon State University, Corvallis, OR 97331
e-mail: pence@engr.orst.edu
Paul A. Boeschoten, Graduate Research Assistant
Department of Mechanical Engineering, Oregon State University, Corvallis, OR 97331
James A. Liburdy, Mem. ASME
Department of Mechanical Engineering, Oregon State University, Corvallis, OR 97331
e-mail: liburdy@engr.orst.edu
Contributed by the Heat Transfer Division for publication in the JOURNAL OF HEAT TRANSFER. Manuscript received by the Heat Transfer Division February 12, 2002; revision received January 31, 2003. Associate Editor: S. P. Vanka.
J. Heat Transfer. Jun 2003, 125(3): 447-453 (7 pages)
Published Online: May 20, 2003
Article history
Received:
February 12, 2002
Revised:
January 31, 2003
Online:
May 20, 2003
Citation
Pence, D. V., Boeschoten, P. A., and Liburdy, J. A. (May 20, 2003). "Simulation of Compressible Micro-Scale Jet Impingement Heat Transfer ." ASME. J. Heat Transfer. June 2003; 125(3): 447–453. https://doi.org/10.1115/1.1571082
Download citation file:
Get Email Alerts
Cited By
Entropic Analysis of the Maximum Output Power of Thermoradiative Cells
J. Heat Mass Transfer
Molecular Dynamics Simulations in Nanoscale Heat Transfer: A Mini Review
J. Heat Mass Transfer
Related Articles
Incompressible Criterion and Pressure Drop for Gaseous Slip Flow in Circular and Noncircular Microchannels
J. Fluids Eng (July,2011)
Heat Transfer Characteristics of Gaseous Slip Flow in Concentric Micro-Annular Tubes
J. Heat Transfer (July,2011)
Characteristic and Computational Fluid Dynamics Modeling of High-Pressure Gas Jet Injection
J. Eng. Gas Turbines Power (January,2004)
Separate Effects of Mach Number and Reynolds Number on Jet Array Impingement Heat Transfer
J. Turbomach (April,2007)
Related Proceedings Papers
Related Chapters
Natural Gas Transmission
Pipeline Design & Construction: A Practical Approach, Third Edition
Applications
Introduction to Finite Element, Boundary Element, and Meshless Methods: With Applications to Heat Transfer and Fluid Flow
A Simple Carburetor
Case Studies in Fluid Mechanics with Sensitivities to Governing Variables